I am in the early stages of running a non-CO2 enriched tank and having to do fairly frequent water changes in order to control the water parameters, but I am concerned about the potential for CO2 fluctuations and the risk of BBA (I have read that tap water contains a relatively higher concentration of CO2 than water that has been standing around for a while). How troublesome are these fluctuations? Anyone any idea how long the tap water should be allowed to sit before it has de-gassed sufficiently?
Thanks
Thanks